CSV: I product imported 23 skipped – identical ID

Hi there.
I have been having issues with importing my catalogue as a CSV file. I tried various approaches – in the end, I followed the example of our old catalogue which had been built manually and worked just fine.
However, it did not fix anything really. I have ID and SKU assigned to every product – all are different. however, when I try to upload the file, WordPress ignores my ID and generates a random number which is then assigned to every product and variation.
I tried amending the ID to simple 1,2,3,4,… That imported 3 products intend of one, but the rest went the same way,

On top of that, the prices are not imported whatever I try.

Can anybody tell me what am I doing wrong?
I obviously tried to search for answers in older topics but was unable to solve it with the help from what I found.

Thank you.

CSV file:
names of columns are loosely translated from Czech without emphasis on the proper terminology as it is not the key of the issue I believe
https://mega.nz/file/0k9DRY4D#WHvRYu3kn5j-5h9Hrc3nG-vKAljNPrqtC3FcyFLU6HI

• This topic was modified 3 years, 3 months ago by prefez.
• This topic was modified 3 years, 3 months ago by prefez.
• This topic was modified 3 years, 3 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Everything else WordPress topic

The page I need help with: [log in to see the link]